QCustomPlot Discussion and Comments

Hi everyone.
I want to add a functionality to the QCP but I don't know where and how to start.
I'll appreciate if anyone can point me to the right approach or if QCP has already came with that feature, someone shed a light on the solution ;-).
This is what I'm looking for:
I want to have a constant number of grid lines (say for example 5 grid lines in each direction). upon dragging I like to see the grid lines at their initial position without movement but I want that the number on the axis beside/under each grid line be changed according to the data its pointing to. I really don't have a clue to start from.

Thanks in advance.

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